“Dark matter can be red hot when it is born, but still have time to cool down before galaxies begin to form.”

We need to talk about antimatter.

“WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting stronger and stronger upper limits, so alternative scenarios have to be considered.”
…

“If this interaction between dark matter and neutrinos is confirmed, it would be a fundamental breakthrough.”